You'd need to decide, LOAD is switch up or LOAD is switch down. Even if a single wire, it needs to be debounced. Dwight
________________________________________ From: cctalk <cctalk-boun...@classiccmp.org> on behalf of Eric Smith <space...@gmail.com> If it was momentary, it would have to be momentary-off-momentary, so it still wouldn't really make sense (IMNSHO) to refer to the contacts as NC and NO.